DABY3CMB8E0 – Toshiba Satellite C800
DABY3CMB8E0 is the Quanta main board used in the Toshiba Satellite C800, Toshiba Satellite C805, Toshiba Satellite C840 and Toshiba Satellite C840-M840. The catalog lists 8 files for it: 3 BIOS files, 3 schematics, 2 boardviews and 1 EC firmware image.
Revisions seen in file names: E. First posted in September 2018 in Cyberlan Electronics, Schematics & Boardviews Archive and BIOS Archive.
BIOS dumps 3
Schematics 3
Boardviews 2
Board facts
| Board number | DABY3CMB8E0 |
|---|---|
| Designed by | Quanta |
| Also known as | Quanta BY3 |
| Revisions | E |
| Graphics | UMA (integrated) |
| First seen | 2018-09-16 |
| Source channels | Cyberlan Electronics, Schematics & Boardviews Archive, BIOS Archive |
| About the number | Quanta board numbers follow the pattern DA + project code + MB + suffix, where the second-to-last letter is the PCB revision. |
Laptops that use DABY3CMB8E0
- Toshiba Satellite C800
- Toshiba Satellite C805
- Toshiba Satellite C840
- Toshiba Satellite C840-M840
- Toshiba Satellite C845
What these files are for
A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.
A schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.
A boardview is the component placement map of the PCB: click a part or a net and the viewer highlights where it is and what it connects to. Used together with the schematic to find test points.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .bdv | Honhan .bdv boardview | OpenBoardView, FlexBV or Honhan BoardViewer |
| .bin | raw SPI flash image | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
| .brd | .brd boardview (Test_Link format) | OpenBoardView, FlexBV or BoardViewer |
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
Questions
Who designed the DABY3CMB8E0 board?
DABY3CMB8E0 is a Quanta board number used by Toshiba.
Which laptops use the DABY3CMB8E0 board?
Files in the catalog link DABY3CMB8E0 to the Toshiba Satellite C800, Toshiba Satellite C805, Toshiba Satellite C840, Toshiba Satellite C840-M840 and Toshiba Satellite C845.
Is there a boardview for DABY3CMB8E0?
Yes, 2 boardview files in .bdv and .brd format.
Where do the download links go?
Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.